Best Climbing Experience

Leading 3 unknowns to the top of an Antarctic summit (one of whom had never worn crampons, a fact he kept from me until reaching the summit!). Passing my MIA Assessment. Or seeing the storm break and the Solvay hut to be only 50m below after a truely horrendous forced bivi on the ridge in Feb with only a duvet and a orange bag to keep out the winter.